Question

What is crossing over?
When chromosomes are said to be homologous?​

Answer 1

Explanation:

crossing over means a phenomenon in which maternal and paternal chromatids of homologus chromosome link together to form Chisma through which genetic material exchange take place

Answer 2

Answer:

Crossing over :-

Exchange of genetic material between two non sister chromatid of homologus chromosome during Meiosis.

Homologus chromosome :-

The two chromosome whose sister and non -sister chromatid are identical in length and structure.